CSSWE was launched into a highly inclined (650) low Earth orbit, 480 km x
780 km, on 13 Sept 2012, as a secondary payload under NASA’s Educational
Launch of Nanosatellites (ELaNa) program. As the single science payload
onboard, the Relativistic Electron and Proton Telescope integrated little
experiment (REPTile) has provided directional differential flux measurements
of protons ranging between 9 and 40 MeV and electrons ranging between 0.58
and >3.8 MeV. REPTile data from 5 Oct 2012 to 1 Jan 2014 are now archived in
the NASA/CDAWeb database, http://cdaweb.gsfc.nasa.gov/istp_public/, and
available to the public. More recent data will be processed and calibrated
(by Quintin Schiller) and uploaded to the website.

CSSWE was launched soon after the launch of the NASA/Van Allen Probes. The
low altitude data from REPTile provide conjunctive analysis with the high
altitude equatorial data from the Van Allen Probes as well as to balloon
measurements, such as the BARREL campaigns.